1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
4 Free Software Foundation
6 This file is part of libgcj.
8 This software is copyrighted work licensed under the terms of the
9 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
20 #include <java-assert.h>
26 #include <java/lang/Class.h>
27 #include <java/lang/ClassLoader.h>
28 #include <java/lang/Throwable.h>
29 #include <java/lang/ArrayIndexOutOfBoundsException.h>
30 #include <java/lang/StringIndexOutOfBoundsException.h>
31 #include <java/lang/StringBuffer.h>
32 #include <java/lang/UnsatisfiedLinkError.h>
33 #include <java/lang/InstantiationException.h>
34 #include <java/lang/NoSuchFieldError.h>
35 #include <java/lang/NoSuchMethodError.h>
36 #include <java/lang/reflect/Constructor.h>
37 #include <java/lang/reflect/Method.h>
38 #include <java/lang/reflect/Modifier.h>
39 #include <java/lang/OutOfMemoryError.h>
40 #include <java/lang/Integer.h>
41 #include <java/lang/ThreadGroup.h>
42 #include <java/lang/Thread.h>
43 #include <java/lang/IllegalAccessError.h>
44 #include <java/nio/DirectByteBufferImpl.h>
45 #include <java/nio/DirectByteBufferImpl$ReadWrite.h>
46 #include <java/util/IdentityHashMap.h>
47 #include <gnu/gcj/RawData.h>
49 #include <gcj/method.h>
50 #include <gcj/field.h>
52 #include <java-interp.h>
53 #include <java-threads.h>
57 // This enum is used to select different template instantiations in
58 // the invocation code.
67 // Forward declarations.
68 extern struct JNINativeInterface _Jv_JNIFunctions
;
69 extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions
;
71 // Number of slots in the default frame. The VM must allow at least
75 // Mark value indicating this is an overflow frame.
77 // Mark value indicating this is a user frame.
79 // Mark value indicating this is a system frame.
82 // This structure is used to keep track of local references.
83 struct _Jv_JNI_LocalFrame
85 // This is true if this frame object represents a pushed frame (eg
86 // from PushLocalFrame).
89 // Number of elements in frame.
92 // Next frame in chain.
93 _Jv_JNI_LocalFrame
*next
;
95 // The elements. These are allocated using the C "struct hack".
99 // This holds a reference count for all local references.
100 static java::util::IdentityHashMap
*local_ref_table
;
101 // This holds a reference count for all global references.
102 static java::util::IdentityHashMap
*global_ref_table
;
105 static JavaVM
*the_vm
;
108 // The only JVMPI interface description.
109 static JVMPI_Interface _Jv_JVMPI_Interface
;
112 jvmpiEnableEvent (jint event_type
, void *)
116 case JVMPI_EVENT_OBJECT_ALLOC
:
117 _Jv_JVMPI_Notify_OBJECT_ALLOC
= _Jv_JVMPI_Interface
.NotifyEvent
;
120 case JVMPI_EVENT_THREAD_START
:
121 _Jv_JVMPI_Notify_THREAD_START
= _Jv_JVMPI_Interface
.NotifyEvent
;
124 case JVMPI_EVENT_THREAD_END
:
125 _Jv_JVMPI_Notify_THREAD_END
= _Jv_JVMPI_Interface
.NotifyEvent
;
129 return JVMPI_NOT_AVAILABLE
;
132 return JVMPI_SUCCESS
;
136 jvmpiDisableEvent (jint event_type
, void *)
140 case JVMPI_EVENT_OBJECT_ALLOC
:
141 _Jv_JVMPI_Notify_OBJECT_ALLOC
= NULL
;
145 return JVMPI_NOT_AVAILABLE
;
148 return JVMPI_SUCCESS
;
157 local_ref_table
= new java::util::IdentityHashMap
;
158 global_ref_table
= new java::util::IdentityHashMap
;
161 _Jv_JVMPI_Interface
.version
= 1;
162 _Jv_JVMPI_Interface
.EnableEvent
= &jvmpiEnableEvent
;
163 _Jv_JVMPI_Interface
.DisableEvent
= &jvmpiDisableEvent
;
164 _Jv_JVMPI_Interface
.EnableGC
= &_Jv_EnableGC
;
165 _Jv_JVMPI_Interface
.DisableGC
= &_Jv_DisableGC
;
166 _Jv_JVMPI_Interface
.RunGC
= &_Jv_RunGC
;
170 // Tell the GC that a certain pointer is live.
172 mark_for_gc (jobject obj
, java::util::IdentityHashMap
*ref_table
)
174 JvSynchronize
sync (ref_table
);
176 using namespace java::lang
;
177 Integer
*refcount
= (Integer
*) ref_table
->get (obj
);
178 jint val
= (refcount
== NULL
) ? 0 : refcount
->intValue ();
179 // FIXME: what about out of memory error?
180 ref_table
->put (obj
, new Integer (val
+ 1));
185 unmark_for_gc (jobject obj
, java::util::IdentityHashMap
*ref_table
)
187 JvSynchronize
sync (ref_table
);
189 using namespace java::lang
;
190 Integer
*refcount
= (Integer
*) ref_table
->get (obj
);
192 jint val
= refcount
->intValue () - 1;
195 ref_table
->remove (obj
);
197 // FIXME: what about out of memory error?
198 ref_table
->put (obj
, new Integer (val
));
201 // "Unwrap" some random non-reference type. This exists to simplify
202 // other template functions.
210 // Unwrap a weak reference, if required.
215 using namespace gnu::gcj::runtime
;
216 // We can compare the class directly because JNIWeakRef is `final'.
217 // Doing it this way is much faster.
218 if (obj
== NULL
|| obj
->getClass () != &JNIWeakRef::class$
)
220 JNIWeakRef
*wr
= reinterpret_cast<JNIWeakRef
*> (obj
);
221 return reinterpret_cast<T
*> (wr
->get ());
226 static jobject JNICALL
227 _Jv_JNI_NewGlobalRef (JNIEnv
*, jobject obj
)
229 // This seems weird but I think it is correct.
231 mark_for_gc (obj
, global_ref_table
);
236 _Jv_JNI_DeleteGlobalRef (JNIEnv
*, jobject obj
)
238 // This seems weird but I think it is correct.
240 unmark_for_gc (obj
, global_ref_table
);
244 _Jv_JNI_DeleteLocalRef (JNIEnv
*env
, jobject obj
)
246 _Jv_JNI_LocalFrame
*frame
;
248 // This seems weird but I think it is correct.
251 for (frame
= env
->locals
; frame
!= NULL
; frame
= frame
->next
)
253 for (int i
= 0; i
< frame
->size
; ++i
)
255 if (frame
->vec
[i
] == obj
)
257 frame
->vec
[i
] = NULL
;
258 unmark_for_gc (obj
, local_ref_table
);
263 // Don't go past a marked frame.
264 JvAssert (frame
->marker
== MARK_NONE
);
271 _Jv_JNI_EnsureLocalCapacity (JNIEnv
*env
, jint size
)
273 // It is easier to just always allocate a new frame of the requested
274 // size. This isn't the most efficient thing, but for now we don't
275 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
277 _Jv_JNI_LocalFrame
*frame
;
280 frame
= (_Jv_JNI_LocalFrame
*) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame
)
281 + size
* sizeof (jobject
));
289 frame
->marker
= MARK_NONE
;
291 memset (&frame
->vec
[0], 0, size
* sizeof (jobject
));
292 frame
->next
= env
->locals
;
299 _Jv_JNI_PushLocalFrame (JNIEnv
*env
, jint size
)
301 jint r
= _Jv_JNI_EnsureLocalCapacity (env
, size
);
305 // The new frame is on top.
306 env
->locals
->marker
= MARK_USER
;
311 static jobject JNICALL
312 _Jv_JNI_NewLocalRef (JNIEnv
*env
, jobject obj
)
314 // This seems weird but I think it is correct.
317 // Try to find an open slot somewhere in the topmost frame.
318 _Jv_JNI_LocalFrame
*frame
= env
->locals
;
319 bool done
= false, set
= false;
320 for (; frame
!= NULL
&& ! done
; frame
= frame
->next
)
322 for (int i
= 0; i
< frame
->size
; ++i
)
324 if (frame
->vec
[i
] == NULL
)
333 // If we found a slot, or if the frame we just searched is the
334 // mark frame, then we are done.
335 if (done
|| frame
== NULL
|| frame
->marker
!= MARK_NONE
)
341 // No slots, so we allocate a new frame. According to the spec
342 // we could just die here. FIXME: return value.
343 _Jv_JNI_EnsureLocalCapacity (env
, 16);
344 // We know the first element of the new frame will be ok.
345 env
->locals
->vec
[0] = obj
;
348 mark_for_gc (obj
, local_ref_table
);
352 static jobject JNICALL
353 _Jv_JNI_PopLocalFrame (JNIEnv
*env
, jobject result
, int stop
)
355 _Jv_JNI_LocalFrame
*rf
= env
->locals
;
358 while (rf
!= NULL
&& ! done
)
360 for (int i
= 0; i
< rf
->size
; ++i
)
361 if (rf
->vec
[i
] != NULL
)
362 unmark_for_gc (rf
->vec
[i
], local_ref_table
);
364 // If the frame we just freed is the marker frame, we are done.
365 done
= (rf
->marker
== stop
);
367 _Jv_JNI_LocalFrame
*n
= rf
->next
;
368 // When N==NULL, we've reached the stack-allocated frame, and we
369 // must not free it. However, we must be sure to clear all its
370 // elements, since we might conceivably reuse it.
373 memset (&rf
->vec
[0], 0, rf
->size
* sizeof (jobject
));
381 // Update the local frame information.
384 return result
== NULL
? NULL
: _Jv_JNI_NewLocalRef (env
, result
);
387 static jobject JNICALL
388 _Jv_JNI_PopLocalFrame (JNIEnv
*env
, jobject result
)
390 return _Jv_JNI_PopLocalFrame (env
, result
, MARK_USER
);
393 // Make sure an array's type is compatible with the type of the
397 _Jv_JNI_check_types (JNIEnv
*env
, JArray
<T
> *array
, jclass K
)
399 jclass klass
= array
->getClass()->getComponentType();
400 if (__builtin_expect (klass
!= K
, false))
402 env
->ex
= new java::lang::IllegalAccessError ();
409 // Pop a `system' frame from the stack. This is `extern "C"' as it is
410 // used by the compiler.
412 _Jv_JNI_PopSystemFrame (JNIEnv
*env
)
414 _Jv_JNI_PopLocalFrame (env
, NULL
, MARK_SYSTEM
);
418 jthrowable t
= env
->ex
;
424 template<typename T
> T
extract_from_jvalue(jvalue
const & t
);
425 template<> jboolean
extract_from_jvalue(jvalue
const & jv
) { return jv
.z
; }
426 template<> jbyte
extract_from_jvalue(jvalue
const & jv
) { return jv
.b
; }
427 template<> jchar
extract_from_jvalue(jvalue
const & jv
) { return jv
.c
; }
428 template<> jshort
extract_from_jvalue(jvalue
const & jv
) { return jv
.s
; }
429 template<> jint
extract_from_jvalue(jvalue
const & jv
) { return jv
.i
; }
430 template<> jlong
extract_from_jvalue(jvalue
const & jv
) { return jv
.j
; }
431 template<> jfloat
extract_from_jvalue(jvalue
const & jv
) { return jv
.f
; }
432 template<> jdouble
extract_from_jvalue(jvalue
const & jv
) { return jv
.d
; }
433 template<> jobject
extract_from_jvalue(jvalue
const & jv
) { return jv
.l
; }
436 // This function is used from other template functions. It wraps the
437 // return value appropriately; we specialize it so that object returns
438 // are turned into local references.
441 wrap_value (JNIEnv
*, T value
)
446 // This specialization is used for jobject, jclass, jstring, jarray,
448 template<typename R
, typename T
>
450 wrap_value (JNIEnv
*env
, T
*value
)
452 return (value
== NULL
454 : (T
*) _Jv_JNI_NewLocalRef (env
, (jobject
) value
));
460 _Jv_JNI_GetVersion (JNIEnv
*)
462 return JNI_VERSION_1_4
;
465 static jclass JNICALL
466 _Jv_JNI_DefineClass (JNIEnv
*env
, const char *name
, jobject loader
,
467 const jbyte
*buf
, jsize bufLen
)
471 loader
= unwrap (loader
);
473 jstring sname
= JvNewStringUTF (name
);
474 jbyteArray bytes
= JvNewByteArray (bufLen
);
476 jbyte
*elts
= elements (bytes
);
477 memcpy (elts
, buf
, bufLen
* sizeof (jbyte
));
479 java::lang::ClassLoader
*l
480 = reinterpret_cast<java::lang::ClassLoader
*> (loader
);
482 jclass result
= l
->defineClass (sname
, bytes
, 0, bufLen
);
483 return (jclass
) wrap_value (env
, result
);
492 static jclass JNICALL
493 _Jv_JNI_FindClass (JNIEnv
*env
, const char *name
)
495 // FIXME: assume that NAME isn't too long.
496 int len
= strlen (name
);
498 for (int i
= 0; i
<= len
; ++i
)
499 s
[i
] = (name
[i
] == '/') ? '.' : name
[i
];
504 // This might throw an out of memory exception.
505 jstring n
= JvNewStringUTF (s
);
507 java::lang::ClassLoader
*loader
= NULL
;
508 if (env
->klass
!= NULL
)
509 loader
= env
->klass
->getClassLoaderInternal ();
513 // FIXME: should use getBaseClassLoader, but we don't have that
515 loader
= java::lang::ClassLoader::getSystemClassLoader ();
518 r
= loader
->loadClass (n
);
525 return (jclass
) wrap_value (env
, r
);
528 static jclass JNICALL
529 _Jv_JNI_GetSuperclass (JNIEnv
*env
, jclass clazz
)
531 return (jclass
) wrap_value (env
, unwrap (clazz
)->getSuperclass ());
534 static jboolean JNICALL
535 _Jv_JNI_IsAssignableFrom (JNIEnv
*, jclass clazz1
, jclass clazz2
)
537 return unwrap (clazz1
)->isAssignableFrom (unwrap (clazz2
));
541 _Jv_JNI_Throw (JNIEnv
*env
, jthrowable obj
)
543 // We check in case the user did some funky cast.
545 JvAssert (obj
!= NULL
&& java::lang::Throwable::class$
.isInstance (obj
));
551 _Jv_JNI_ThrowNew (JNIEnv
*env
, jclass clazz
, const char *message
)
553 using namespace java::lang::reflect
;
555 clazz
= unwrap (clazz
);
556 JvAssert (java::lang::Throwable::class$
.isAssignableFrom (clazz
));
561 JArray
<jclass
> *argtypes
562 = (JArray
<jclass
> *) JvNewObjectArray (1, &java::lang::Class::class$
,
565 jclass
*elts
= elements (argtypes
);
566 elts
[0] = &java::lang::String::class$
;
568 Constructor
*cons
= clazz
->getConstructor (argtypes
);
570 jobjectArray values
= JvNewObjectArray (1, &java::lang::String::class$
,
572 jobject
*velts
= elements (values
);
573 velts
[0] = JvNewStringUTF (message
);
575 jobject obj
= cons
->newInstance (values
);
577 env
->ex
= reinterpret_cast<jthrowable
> (obj
);
588 static jthrowable JNICALL
589 _Jv_JNI_ExceptionOccurred (JNIEnv
*env
)
591 return (jthrowable
) wrap_value (env
, env
->ex
);
595 _Jv_JNI_ExceptionDescribe (JNIEnv
*env
)
598 env
->ex
->printStackTrace();
602 _Jv_JNI_ExceptionClear (JNIEnv
*env
)
607 static jboolean JNICALL
608 _Jv_JNI_ExceptionCheck (JNIEnv
*env
)
610 return env
->ex
!= NULL
;
614 _Jv_JNI_FatalError (JNIEnv
*, const char *message
)
621 static jboolean JNICALL
622 _Jv_JNI_IsSameObject (JNIEnv
*, jobject obj1
, jobject obj2
)
624 return unwrap (obj1
) == unwrap (obj2
);
627 static jobject JNICALL
628 _Jv_JNI_AllocObject (JNIEnv
*env
, jclass clazz
)
631 using namespace java::lang::reflect
;
635 clazz
= unwrap (clazz
);
636 JvAssert (clazz
&& ! clazz
->isArray ());
637 if (clazz
->isInterface() || Modifier::isAbstract(clazz
->getModifiers()))
638 env
->ex
= new java::lang::InstantiationException ();
640 obj
= _Jv_AllocObject (clazz
);
647 return wrap_value (env
, obj
);
650 static jclass JNICALL
651 _Jv_JNI_GetObjectClass (JNIEnv
*env
, jobject obj
)
655 return (jclass
) wrap_value (env
, obj
->getClass());
658 static jboolean JNICALL
659 _Jv_JNI_IsInstanceOf (JNIEnv
*, jobject obj
, jclass clazz
)
661 return unwrap (clazz
)->isInstance(unwrap (obj
));
667 // This section concerns method invocation.
670 template<jboolean is_static
>
671 static jmethodID JNICALL
672 _Jv_JNI_GetAnyMethodID (JNIEnv
*env
, jclass clazz
,
673 const char *name
, const char *sig
)
677 clazz
= unwrap (clazz
);
678 _Jv_InitClass (clazz
);
680 _Jv_Utf8Const
*name_u
= _Jv_makeUtf8Const ((char *) name
, -1);
682 // FIXME: assume that SIG isn't too long.
683 int len
= strlen (sig
);
685 for (int i
= 0; i
<= len
; ++i
)
686 s
[i
] = (sig
[i
] == '/') ? '.' : sig
[i
];
687 _Jv_Utf8Const
*sig_u
= _Jv_makeUtf8Const ((char *) s
, -1);
689 JvAssert (! clazz
->isPrimitive());
691 using namespace java::lang::reflect
;
693 while (clazz
!= NULL
)
695 jint count
= JvNumMethods (clazz
);
696 jmethodID meth
= JvGetFirstMethod (clazz
);
698 for (jint i
= 0; i
< count
; ++i
)
700 if (((is_static
&& Modifier::isStatic (meth
->accflags
))
701 || (! is_static
&& ! Modifier::isStatic (meth
->accflags
)))
702 && _Jv_equalUtf8Consts (meth
->name
, name_u
)
703 && _Jv_equalUtf8Consts (meth
->signature
, sig_u
))
706 meth
= meth
->getNextMethod();
709 clazz
= clazz
->getSuperclass ();
712 java::lang::StringBuffer
*name_sig
=
713 new java::lang::StringBuffer (JvNewStringUTF (name
));
714 name_sig
->append ((jchar
) ' ')->append (JvNewStringUTF (s
));
715 env
->ex
= new java::lang::NoSuchMethodError (name_sig
->toString ());
725 // This is a helper function which turns a va_list into an array of
726 // `jvalue's. It needs signature information in order to do its work.
727 // The array of values must already be allocated.
729 array_from_valist (jvalue
*values
, JArray
<jclass
> *arg_types
, va_list vargs
)
731 jclass
*arg_elts
= elements (arg_types
);
732 for (int i
= 0; i
< arg_types
->length
; ++i
)
734 // Here we assume that sizeof(int) >= sizeof(jint), because we
735 // use `int' when decoding the varargs. Likewise for
736 // float, and double. Also we assume that sizeof(jlong) >=
737 // sizeof(int), i.e. that jlong values are not further
739 JvAssert (sizeof (int) >= sizeof (jint
));
740 JvAssert (sizeof (jlong
) >= sizeof (int));
741 JvAssert (sizeof (double) >= sizeof (jfloat
));
742 JvAssert (sizeof (double) >= sizeof (jdouble
));
743 if (arg_elts
[i
] == JvPrimClass (byte
))
744 values
[i
].b
= (jbyte
) va_arg (vargs
, int);
745 else if (arg_elts
[i
] == JvPrimClass (short))
746 values
[i
].s
= (jshort
) va_arg (vargs
, int);
747 else if (arg_elts
[i
] == JvPrimClass (int))
748 values
[i
].i
= (jint
) va_arg (vargs
, int);
749 else if (arg_elts
[i
] == JvPrimClass (long))
750 values
[i
].j
= (jlong
) va_arg (vargs
, jlong
);
751 else if (arg_elts
[i
] == JvPrimClass (float))
752 values
[i
].f
= (jfloat
) va_arg (vargs
, double);
753 else if (arg_elts
[i
] == JvPrimClass (double))
754 values
[i
].d
= (jdouble
) va_arg (vargs
, double);
755 else if (arg_elts
[i
] == JvPrimClass (boolean
))
756 values
[i
].z
= (jboolean
) va_arg (vargs
, int);
757 else if (arg_elts
[i
] == JvPrimClass (char))
758 values
[i
].c
= (jchar
) va_arg (vargs
, int);
762 values
[i
].l
= unwrap (va_arg (vargs
, jobject
));
767 // This can call any sort of method: virtual, "nonvirtual", static, or
769 template<typename T
, invocation_type style
>
771 _Jv_JNI_CallAnyMethodV (JNIEnv
*env
, jobject obj
, jclass klass
,
772 jmethodID id
, va_list vargs
)
775 klass
= unwrap (klass
);
777 jclass decl_class
= klass
? klass
: obj
->getClass ();
778 JvAssert (decl_class
!= NULL
);
781 JArray
<jclass
> *arg_types
;
785 _Jv_GetTypesFromSignature (id
, decl_class
,
786 &arg_types
, &return_type
);
788 jvalue args
[arg_types
->length
];
789 array_from_valist (args
, arg_types
, vargs
);
791 // For constructors we need to pass the Class we are instantiating.
792 if (style
== constructor
)
796 _Jv_CallAnyMethodA (obj
, return_type
, id
,
797 style
== constructor
,
799 arg_types
, args
, &result
);
801 return wrap_value (env
, extract_from_jvalue
<T
>(result
));
808 return wrap_value (env
, (T
) 0);
811 template<typename T
, invocation_type style
>
813 _Jv_JNI_CallAnyMethod (JNIEnv
*env
, jobject obj
, jclass klass
,
814 jmethodID method
, ...)
819 va_start (args
, method
);
820 result
= _Jv_JNI_CallAnyMethodV
<T
, style
> (env
, obj
, klass
, method
, args
);
826 template<typename T
, invocation_type style
>
828 _Jv_JNI_CallAnyMethodA (JNIEnv
*env
, jobject obj
, jclass klass
,
829 jmethodID id
, jvalue
*args
)
832 klass
= unwrap (klass
);
834 jclass decl_class
= klass
? klass
: obj
->getClass ();
835 JvAssert (decl_class
!= NULL
);
838 JArray
<jclass
> *arg_types
;
841 _Jv_GetTypesFromSignature (id
, decl_class
,
842 &arg_types
, &return_type
);
844 // For constructors we need to pass the Class we are instantiating.
845 if (style
== constructor
)
848 // Unwrap arguments as required. Eww.
849 jclass
*type_elts
= elements (arg_types
);
850 jvalue arg_copy
[arg_types
->length
];
851 for (int i
= 0; i
< arg_types
->length
; ++i
)
853 if (type_elts
[i
]->isPrimitive ())
854 arg_copy
[i
] = args
[i
];
856 arg_copy
[i
].l
= unwrap (args
[i
].l
);
860 _Jv_CallAnyMethodA (obj
, return_type
, id
,
861 style
== constructor
,
863 arg_types
, arg_copy
, &result
);
865 return wrap_value (env
, extract_from_jvalue
<T
>(result
));
872 return wrap_value (env
, (T
) 0);
875 template<invocation_type style
>
877 _Jv_JNI_CallAnyVoidMethodV (JNIEnv
*env
, jobject obj
, jclass klass
,
878 jmethodID id
, va_list vargs
)
881 klass
= unwrap (klass
);
883 jclass decl_class
= klass
? klass
: obj
->getClass ();
884 JvAssert (decl_class
!= NULL
);
887 JArray
<jclass
> *arg_types
;
890 _Jv_GetTypesFromSignature (id
, decl_class
,
891 &arg_types
, &return_type
);
893 jvalue args
[arg_types
->length
];
894 array_from_valist (args
, arg_types
, vargs
);
896 // For constructors we need to pass the Class we are instantiating.
897 if (style
== constructor
)
900 _Jv_CallAnyMethodA (obj
, return_type
, id
,
901 style
== constructor
,
903 arg_types
, args
, NULL
);
911 template<invocation_type style
>
913 _Jv_JNI_CallAnyVoidMethod (JNIEnv
*env
, jobject obj
, jclass klass
,
914 jmethodID method
, ...)
918 va_start (args
, method
);
919 _Jv_JNI_CallAnyVoidMethodV
<style
> (env
, obj
, klass
, method
, args
);
923 template<invocation_type style
>
925 _Jv_JNI_CallAnyVoidMethodA (JNIEnv
*env
, jobject obj
, jclass klass
,
926 jmethodID id
, jvalue
*args
)
928 jclass decl_class
= klass
? klass
: obj
->getClass ();
929 JvAssert (decl_class
!= NULL
);
932 JArray
<jclass
> *arg_types
;
935 _Jv_GetTypesFromSignature (id
, decl_class
,
936 &arg_types
, &return_type
);
938 // Unwrap arguments as required. Eww.
939 jclass
*type_elts
= elements (arg_types
);
940 jvalue arg_copy
[arg_types
->length
];
941 for (int i
= 0; i
< arg_types
->length
; ++i
)
943 if (type_elts
[i
]->isPrimitive ())
944 arg_copy
[i
] = args
[i
];
946 arg_copy
[i
].l
= unwrap (args
[i
].l
);
949 _Jv_CallAnyMethodA (obj
, return_type
, id
,
950 style
== constructor
,
952 arg_types
, args
, NULL
);
960 // Functions with this signature are used to implement functions in
961 // the CallMethod family.
964 _Jv_JNI_CallMethodV (JNIEnv
*env
, jobject obj
,
965 jmethodID id
, va_list args
)
967 return _Jv_JNI_CallAnyMethodV
<T
, normal
> (env
, obj
, NULL
, id
, args
);
970 // Functions with this signature are used to implement functions in
971 // the CallMethod family.
974 _Jv_JNI_CallMethod (JNIEnv
*env
, jobject obj
, jmethodID id
, ...)
980 result
= _Jv_JNI_CallAnyMethodV
<T
, normal
> (env
, obj
, NULL
, id
, args
);
986 // Functions with this signature are used to implement functions in
987 // the CallMethod family.
990 _Jv_JNI_CallMethodA (JNIEnv
*env
, jobject obj
,
991 jmethodID id
, jvalue
*args
)
993 return _Jv_JNI_CallAnyMethodA
<T
, normal
> (env
, obj
, NULL
, id
, args
);
997 _Jv_JNI_CallVoidMethodV (JNIEnv
*env
, jobject obj
,
998 jmethodID id
, va_list args
)
1000 _Jv_JNI_CallAnyVoidMethodV
<normal
> (env
, obj
, NULL
, id
, args
);
1004 _Jv_JNI_CallVoidMethod (JNIEnv
*env
, jobject obj
, jmethodID id
, ...)
1008 va_start (args
, id
);
1009 _Jv_JNI_CallAnyVoidMethodV
<normal
> (env
, obj
, NULL
, id
, args
);
1014 _Jv_JNI_CallVoidMethodA (JNIEnv
*env
, jobject obj
,
1015 jmethodID id
, jvalue
*args
)
1017 _Jv_JNI_CallAnyVoidMethodA
<normal
> (env
, obj
, NULL
, id
, args
);
1020 // Functions with this signature are used to implement functions in
1021 // the CallStaticMethod family.
1022 template<typename T
>
1024 _Jv_JNI_CallStaticMethodV (JNIEnv
*env
, jclass klass
,
1025 jmethodID id
, va_list args
)
1027 JvAssert (((id
->accflags
) & java::lang::reflect::Modifier::STATIC
));
1028 JvAssert (java::lang::Class::class$
.isInstance (unwrap (klass
)));
1030 return _Jv_JNI_CallAnyMethodV
<T
, static_type
> (env
, NULL
, klass
, id
, args
);
1033 // Functions with this signature are used to implement functions in
1034 // the CallStaticMethod family.
1035 template<typename T
>
1037 _Jv_JNI_CallStaticMethod (JNIEnv
*env
, jclass klass
,
1043 JvAssert (((id
->accflags
) & java::lang::reflect::Modifier::STATIC
));
1044 JvAssert (java::lang::Class::class$
.isInstance (unwrap (klass
)));
1046 va_start (args
, id
);
1047 result
= _Jv_JNI_CallAnyMethodV
<T
, static_type
> (env
, NULL
, klass
,
1054 // Functions with this signature are used to implement functions in
1055 // the CallStaticMethod family.
1056 template<typename T
>
1058 _Jv_JNI_CallStaticMethodA (JNIEnv
*env
, jclass klass
, jmethodID id
,
1061 JvAssert (((id
->accflags
) & java::lang::reflect::Modifier::STATIC
));
1062 JvAssert (java::lang::Class::class$
.isInstance (unwrap (klass
)));
1064 return _Jv_JNI_CallAnyMethodA
<T
, static_type
> (env
, NULL
, klass
, id
, args
);
1068 _Jv_JNI_CallStaticVoidMethodV (JNIEnv
*env
, jclass klass
,
1069 jmethodID id
, va_list args
)
1071 _Jv_JNI_CallAnyVoidMethodV
<static_type
> (env
, NULL
, klass
, id
, args
);
1075 _Jv_JNI_CallStaticVoidMethod (JNIEnv
*env
, jclass klass
,
1080 va_start (args
, id
);
1081 _Jv_JNI_CallAnyVoidMethodV
<static_type
> (env
, NULL
, klass
, id
, args
);
1086 _Jv_JNI_CallStaticVoidMethodA (JNIEnv
*env
, jclass klass
,
1087 jmethodID id
, jvalue
*args
)
1089 _Jv_JNI_CallAnyVoidMethodA
<static_type
> (env
, NULL
, klass
, id
, args
);
1092 static jobject JNICALL
1093 _Jv_JNI_NewObjectV (JNIEnv
*env
, jclass klass
,
1094 jmethodID id
, va_list args
)
1096 JvAssert (klass
&& ! klass
->isArray ());
1097 JvAssert (! strcmp (id
->name
->data
, "<init>")
1098 && id
->signature
->length
> 2
1099 && id
->signature
->data
[0] == '('
1100 && ! strcmp (&id
->signature
->data
[id
->signature
->length
- 2],
1103 return _Jv_JNI_CallAnyMethodV
<jobject
, constructor
> (env
, NULL
, klass
,
1107 static jobject JNICALL
1108 _Jv_JNI_NewObject (JNIEnv
*env
, jclass klass
, jmethodID id
, ...)
1110 JvAssert (klass
&& ! klass
->isArray ());
1111 JvAssert (! strcmp (id
->name
->data
, "<init>")
1112 && id
->signature
->length
> 2
1113 && id
->signature
->data
[0] == '('
1114 && ! strcmp (&id
->signature
->data
[id
->signature
->length
- 2],
1120 va_start (args
, id
);
1121 result
= _Jv_JNI_CallAnyMethodV
<jobject
, constructor
> (env
, NULL
, klass
,
1128 static jobject JNICALL
1129 _Jv_JNI_NewObjectA (JNIEnv
*env
, jclass klass
, jmethodID id
,
1132 JvAssert (klass
&& ! klass
->isArray ());
1133 JvAssert (! strcmp (id
->name
->data
, "<init>")
1134 && id
->signature
->length
> 2
1135 && id
->signature
->data
[0] == '('
1136 && ! strcmp (&id
->signature
->data
[id
->signature
->length
- 2],
1139 return _Jv_JNI_CallAnyMethodA
<jobject
, constructor
> (env
, NULL
, klass
,
1145 template<typename T
>
1147 _Jv_JNI_GetField (JNIEnv
*env
, jobject obj
, jfieldID field
)
1151 T
*ptr
= (T
*) ((char *) obj
+ field
->getOffset ());
1152 return wrap_value (env
, *ptr
);
1155 template<typename T
>
1157 _Jv_JNI_SetField (JNIEnv
*, jobject obj
, jfieldID field
, T value
)
1160 value
= unwrap (value
);
1163 T
*ptr
= (T
*) ((char *) obj
+ field
->getOffset ());
1167 template<jboolean is_static
>
1168 static jfieldID JNICALL
1169 _Jv_JNI_GetAnyFieldID (JNIEnv
*env
, jclass clazz
,
1170 const char *name
, const char *sig
)
1174 clazz
= unwrap (clazz
);
1176 _Jv_InitClass (clazz
);
1178 _Jv_Utf8Const
*a_name
= _Jv_makeUtf8Const ((char *) name
, -1);
1180 // FIXME: assume that SIG isn't too long.
1181 int len
= strlen (sig
);
1183 for (int i
= 0; i
<= len
; ++i
)
1184 s
[i
] = (sig
[i
] == '/') ? '.' : sig
[i
];
1185 jclass field_class
= _Jv_FindClassFromSignature ((char *) s
, NULL
);
1187 // FIXME: what if field_class == NULL?
1189 java::lang::ClassLoader
*loader
= clazz
->getClassLoaderInternal ();
1190 while (clazz
!= NULL
)
1192 // We acquire the class lock so that fields aren't resolved
1193 // while we are running.
1194 JvSynchronize
sync (clazz
);
1196 jint count
= (is_static
1197 ? JvNumStaticFields (clazz
)
1198 : JvNumInstanceFields (clazz
));
1199 jfieldID field
= (is_static
1200 ? JvGetFirstStaticField (clazz
)
1201 : JvGetFirstInstanceField (clazz
));
1202 for (jint i
= 0; i
< count
; ++i
)
1204 _Jv_Utf8Const
*f_name
= field
->getNameUtf8Const(clazz
);
1206 // The field might be resolved or it might not be. It
1207 // is much simpler to always resolve it.
1208 _Jv_Linker::resolve_field (field
, loader
);
1209 if (_Jv_equalUtf8Consts (f_name
, a_name
)
1210 && field
->getClass() == field_class
)
1213 field
= field
->getNextField ();
1216 clazz
= clazz
->getSuperclass ();
1219 env
->ex
= new java::lang::NoSuchFieldError ();
1221 catch (jthrowable t
)
1228 template<typename T
>
1230 _Jv_JNI_GetStaticField (JNIEnv
*env
, jclass
, jfieldID field
)
1232 T
*ptr
= (T
*) field
->u
.addr
;
1233 return wrap_value (env
, *ptr
);
1236 template<typename T
>
1238 _Jv_JNI_SetStaticField (JNIEnv
*, jclass
, jfieldID field
, T value
)
1240 value
= unwrap (value
);
1241 T
*ptr
= (T
*) field
->u
.addr
;
1245 static jstring JNICALL
1246 _Jv_JNI_NewString (JNIEnv
*env
, const jchar
*unichars
, jsize len
)
1250 jstring r
= _Jv_NewString (unichars
, len
);
1251 return (jstring
) wrap_value (env
, r
);
1253 catch (jthrowable t
)
1260 static jsize JNICALL
1261 _Jv_JNI_GetStringLength (JNIEnv
*, jstring string
)
1263 return unwrap (string
)->length();
1266 static const jchar
* JNICALL
1267 _Jv_JNI_GetStringChars (JNIEnv
*, jstring string
, jboolean
*isCopy
)
1269 string
= unwrap (string
);
1270 jchar
*result
= _Jv_GetStringChars (string
);
1271 mark_for_gc (string
, global_ref_table
);
1274 return (const jchar
*) result
;
1278 _Jv_JNI_ReleaseStringChars (JNIEnv
*, jstring string
, const jchar
*)
1280 unmark_for_gc (unwrap (string
), global_ref_table
);
1283 static jstring JNICALL
1284 _Jv_JNI_NewStringUTF (JNIEnv
*env
, const char *bytes
)
1288 jstring result
= JvNewStringUTF (bytes
);
1289 return (jstring
) wrap_value (env
, result
);
1291 catch (jthrowable t
)
1298 static jsize JNICALL
1299 _Jv_JNI_GetStringUTFLength (JNIEnv
*, jstring string
)
1301 return JvGetStringUTFLength (unwrap (string
));
1304 static const char * JNICALL
1305 _Jv_JNI_GetStringUTFChars (JNIEnv
*env
, jstring string
,
1310 string
= unwrap (string
);
1313 jsize len
= JvGetStringUTFLength (string
);
1314 char *r
= (char *) _Jv_Malloc (len
+ 1);
1315 JvGetStringUTFRegion (string
, 0, string
->length(), r
);
1321 return (const char *) r
;
1323 catch (jthrowable t
)
1331 _Jv_JNI_ReleaseStringUTFChars (JNIEnv
*, jstring
, const char *utf
)
1333 _Jv_Free ((void *) utf
);
1337 _Jv_JNI_GetStringRegion (JNIEnv
*env
, jstring string
, jsize start
,
1338 jsize len
, jchar
*buf
)
1340 string
= unwrap (string
);
1341 jchar
*result
= _Jv_GetStringChars (string
);
1342 if (start
< 0 || start
> string
->length ()
1343 || len
< 0 || start
+ len
> string
->length ())
1347 env
->ex
= new java::lang::StringIndexOutOfBoundsException ();
1349 catch (jthrowable t
)
1355 memcpy (buf
, &result
[start
], len
* sizeof (jchar
));
1359 _Jv_JNI_GetStringUTFRegion (JNIEnv
*env
, jstring str
, jsize start
,
1360 jsize len
, char *buf
)
1364 if (start
< 0 || start
> str
->length ()
1365 || len
< 0 || start
+ len
> str
->length ())
1369 env
->ex
= new java::lang::StringIndexOutOfBoundsException ();
1371 catch (jthrowable t
)
1377 _Jv_GetStringUTFRegion (str
, start
, len
, buf
);
1380 static const jchar
* JNICALL
1381 _Jv_JNI_GetStringCritical (JNIEnv
*, jstring str
, jboolean
*isCopy
)
1383 jchar
*result
= _Jv_GetStringChars (unwrap (str
));
1390 _Jv_JNI_ReleaseStringCritical (JNIEnv
*, jstring
, const jchar
*)
1395 static jsize JNICALL
1396 _Jv_JNI_GetArrayLength (JNIEnv
*, jarray array
)
1398 return unwrap (array
)->length
;
1401 static jobjectArray JNICALL
1402 _Jv_JNI_NewObjectArray (JNIEnv
*env
, jsize length
,
1403 jclass elementClass
, jobject init
)
1407 elementClass
= unwrap (elementClass
);
1408 init
= unwrap (init
);
1410 _Jv_CheckCast (elementClass
, init
);
1411 jarray result
= JvNewObjectArray (length
, elementClass
, init
);
1412 return (jobjectArray
) wrap_value (env
, result
);
1414 catch (jthrowable t
)
1421 static jobject JNICALL
1422 _Jv_JNI_GetObjectArrayElement (JNIEnv
*env
, jobjectArray array
,
1425 if ((unsigned) index
>= (unsigned) array
->length
)
1426 _Jv_ThrowBadArrayIndex (index
);
1427 jobject
*elts
= elements (unwrap (array
));
1428 return wrap_value (env
, elts
[index
]);
1432 _Jv_JNI_SetObjectArrayElement (JNIEnv
*env
, jobjectArray array
,
1433 jsize index
, jobject value
)
1437 array
= unwrap (array
);
1438 value
= unwrap (value
);
1440 _Jv_CheckArrayStore (array
, value
);
1441 if ((unsigned) index
>= (unsigned) array
->length
)
1442 _Jv_ThrowBadArrayIndex (index
);
1443 jobject
*elts
= elements (array
);
1444 elts
[index
] = value
;
1446 catch (jthrowable t
)
1452 template<typename T
, jclass K
>
1453 static JArray
<T
> * JNICALL
1454 _Jv_JNI_NewPrimitiveArray (JNIEnv
*env
, jsize length
)
1458 return (JArray
<T
> *) wrap_value (env
, _Jv_NewPrimArray (K
, length
));
1460 catch (jthrowable t
)
1467 template<typename T
, jclass K
>
1469 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv
*env
, JArray
<T
> *array
,
1472 array
= unwrap (array
);
1473 if (! _Jv_JNI_check_types (env
, array
, K
))
1475 T
*elts
= elements (array
);
1478 // We elect never to copy.
1481 mark_for_gc (array
, global_ref_table
);
1485 template<typename T
, jclass K
>
1487 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv
*env
, JArray
<T
> *array
,
1488 T
*, jint
/* mode */)
1490 array
= unwrap (array
);
1491 _Jv_JNI_check_types (env
, array
, K
);
1492 // Note that we ignore MODE. We can do this because we never copy
1493 // the array elements. My reading of the JNI documentation is that
1494 // this is an option for the implementor.
1495 unmark_for_gc (array
, global_ref_table
);
1498 template<typename T
, jclass K
>
1500 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv
*env
, JArray
<T
> *array
,
1501 jsize start
, jsize len
,
1504 array
= unwrap (array
);
1505 if (! _Jv_JNI_check_types (env
, array
, K
))
1508 // The cast to unsigned lets us save a comparison.
1509 if (start
< 0 || len
< 0
1510 || (unsigned long) (start
+ len
) > (unsigned long) array
->length
)
1515 env
->ex
= new java::lang::ArrayIndexOutOfBoundsException ();
1517 catch (jthrowable t
)
1519 // Could have thown out of memory error.
1525 T
*elts
= elements (array
) + start
;
1526 memcpy (buf
, elts
, len
* sizeof (T
));
1530 template<typename T
, jclass K
>
1532 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv
*env
, JArray
<T
> *array
,
1533 jsize start
, jsize len
, T
*buf
)
1535 array
= unwrap (array
);
1536 if (! _Jv_JNI_check_types (env
, array
, K
))
1539 // The cast to unsigned lets us save a comparison.
1540 if (start
< 0 || len
< 0
1541 || (unsigned long) (start
+ len
) > (unsigned long) array
->length
)
1546 env
->ex
= new java::lang::ArrayIndexOutOfBoundsException ();
1548 catch (jthrowable t
)
1555 T
*elts
= elements (array
) + start
;
1556 memcpy (elts
, buf
, len
* sizeof (T
));
1560 static void * JNICALL
1561 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv
*, jarray array
,
1564 array
= unwrap (array
);
1565 // FIXME: does this work?
1566 jclass klass
= array
->getClass()->getComponentType();
1567 JvAssert (klass
->isPrimitive ());
1568 char *r
= _Jv_GetArrayElementFromElementType (array
, klass
);
1575 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv
*, jarray
, void *, jint
)
1581 _Jv_JNI_MonitorEnter (JNIEnv
*env
, jobject obj
)
1585 _Jv_MonitorEnter (unwrap (obj
));
1588 catch (jthrowable t
)
1596 _Jv_JNI_MonitorExit (JNIEnv
*env
, jobject obj
)
1600 _Jv_MonitorExit (unwrap (obj
));
1603 catch (jthrowable t
)
1612 _Jv_JNI_ToReflectedField (JNIEnv
*env
, jclass cls
, jfieldID fieldID
,
1618 java::lang::reflect::Field
*field
= new java::lang::reflect::Field();
1619 field
->declaringClass
= cls
;
1620 field
->offset
= (char*) fieldID
- (char *) cls
->fields
;
1621 field
->name
= _Jv_NewStringUtf8Const (fieldID
->getNameUtf8Const (cls
));
1622 return wrap_value (env
, field
);
1624 catch (jthrowable t
)
1632 static jfieldID JNICALL
1633 _Jv_JNI_FromReflectedField (JNIEnv
*, jobject f
)
1635 using namespace java::lang::reflect
;
1638 Field
*field
= reinterpret_cast<Field
*> (f
);
1639 return _Jv_FromReflectedField (field
);
1643 _Jv_JNI_ToReflectedMethod (JNIEnv
*env
, jclass klass
, jmethodID id
,
1646 using namespace java::lang::reflect
;
1648 jobject result
= NULL
;
1649 klass
= unwrap (klass
);
1653 if (_Jv_equalUtf8Consts (id
->name
, init_name
))
1656 Constructor
*cons
= new Constructor ();
1657 cons
->offset
= (char *) id
- (char *) &klass
->methods
;
1658 cons
->declaringClass
= klass
;
1663 Method
*meth
= new Method ();
1664 meth
->offset
= (char *) id
- (char *) &klass
->methods
;
1665 meth
->declaringClass
= klass
;
1669 catch (jthrowable t
)
1674 return wrap_value (env
, result
);
1677 static jmethodID JNICALL
1678 _Jv_JNI_FromReflectedMethod (JNIEnv
*, jobject method
)
1680 using namespace java::lang::reflect
;
1681 method
= unwrap (method
);
1682 if (Method::class$
.isInstance (method
))
1683 return _Jv_FromReflectedMethod (reinterpret_cast<Method
*> (method
));
1685 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor
*> (method
));
1690 _Jv_JNI_NewWeakGlobalRef (JNIEnv
*env
, jobject obj
)
1692 using namespace gnu::gcj::runtime
;
1693 JNIWeakRef
*ref
= NULL
;
1697 // This seems weird but I think it is correct.
1699 ref
= new JNIWeakRef (obj
);
1700 mark_for_gc (ref
, global_ref_table
);
1702 catch (jthrowable t
)
1707 return reinterpret_cast<jweak
> (ref
);
1711 _Jv_JNI_DeleteWeakGlobalRef (JNIEnv
*, jweak obj
)
1713 using namespace gnu::gcj::runtime
;
1714 JNIWeakRef
*ref
= reinterpret_cast<JNIWeakRef
*> (obj
);
1715 unmark_for_gc (ref
, global_ref_table
);
1721 // Direct byte buffers.
1723 static jobject JNICALL
1724 _Jv_JNI_NewDirectByteBuffer (JNIEnv
*, void *address
, jlong length
)
1726 using namespace gnu::gcj
;
1727 using namespace java::nio
;
1728 return new DirectByteBufferImpl$ReadWrite
1729 (reinterpret_cast<RawData
*> (address
), length
);
1732 static void * JNICALL
1733 _Jv_JNI_GetDirectBufferAddress (JNIEnv
*, jobject buffer
)
1735 using namespace java::nio
;
1736 DirectByteBufferImpl
* bb
= static_cast<DirectByteBufferImpl
*> (buffer
);
1737 return reinterpret_cast<void *> (bb
->address
);
1740 static jlong JNICALL
1741 _Jv_JNI_GetDirectBufferCapacity (JNIEnv
*, jobject buffer
)
1743 using namespace java::nio
;
1744 DirectByteBufferImpl
* bb
= static_cast<DirectByteBufferImpl
*> (buffer
);
1745 return bb
->capacity();
1750 // Hash table of native methods.
1751 static JNINativeMethod
*nathash
;
1752 // Number of slots used.
1753 static int nathash_count
= 0;
1754 // Number of slots available. Must be power of 2.
1755 static int nathash_size
= 0;
1757 #define DELETED_ENTRY ((char *) (~0))
1759 // Compute a hash value for a native method descriptor.
1761 hash (const JNINativeMethod
*method
)
1768 hash
= (31 * hash
) + *ptr
++;
1770 ptr
= method
->signature
;
1772 hash
= (31 * hash
) + *ptr
++;
1777 // Find the slot where a native method goes.
1778 static JNINativeMethod
*
1779 nathash_find_slot (const JNINativeMethod
*method
)
1781 jint h
= hash (method
);
1782 int step
= (h
^ (h
>> 16)) | 1;
1783 int w
= h
& (nathash_size
- 1);
1788 JNINativeMethod
*slotp
= &nathash
[w
];
1789 if (slotp
->name
== NULL
)
1792 return &nathash
[del
];
1796 else if (slotp
->name
== DELETED_ENTRY
)
1798 else if (! strcmp (slotp
->name
, method
->name
)
1799 && ! strcmp (slotp
->signature
, method
->signature
))
1801 w
= (w
+ step
) & (nathash_size
- 1);
1805 // Find a method. Return NULL if it isn't in the hash table.
1807 nathash_find (JNINativeMethod
*method
)
1809 if (nathash
== NULL
)
1811 JNINativeMethod
*slot
= nathash_find_slot (method
);
1812 if (slot
->name
== NULL
|| slot
->name
== DELETED_ENTRY
)
1820 if (nathash
== NULL
)
1822 nathash_size
= 1024;
1824 (JNINativeMethod
*) _Jv_AllocBytes (nathash_size
1825 * sizeof (JNINativeMethod
));
1826 memset (nathash
, 0, nathash_size
* sizeof (JNINativeMethod
));
1830 int savesize
= nathash_size
;
1831 JNINativeMethod
*savehash
= nathash
;
1834 (JNINativeMethod
*) _Jv_AllocBytes (nathash_size
1835 * sizeof (JNINativeMethod
));
1836 memset (nathash
, 0, nathash_size
* sizeof (JNINativeMethod
));
1838 for (int i
= 0; i
< savesize
; ++i
)
1840 if (savehash
[i
].name
!= NULL
&& savehash
[i
].name
!= DELETED_ENTRY
)
1842 JNINativeMethod
*slot
= nathash_find_slot (&savehash
[i
]);
1843 *slot
= savehash
[i
];
1850 nathash_add (const JNINativeMethod
*method
)
1852 if (3 * nathash_count
>= 2 * nathash_size
)
1854 JNINativeMethod
*slot
= nathash_find_slot (method
);
1855 // If the slot has a real entry in it, then there is no work to do.
1856 if (slot
->name
!= NULL
&& slot
->name
!= DELETED_ENTRY
)
1859 slot
->name
= strdup (method
->name
);
1860 slot
->signature
= strdup (method
->signature
);
1861 slot
->fnPtr
= method
->fnPtr
;
1865 _Jv_JNI_RegisterNatives (JNIEnv
*env
, jclass klass
,
1866 const JNINativeMethod
*methods
,
1869 // Synchronize while we do the work. This must match
1870 // synchronization in some other functions that manipulate or use
1871 // the nathash table.
1872 JvSynchronize
sync (global_ref_table
);
1874 // Look at each descriptor given us, and find the corresponding
1875 // method in the class.
1876 for (int j
= 0; j
< nMethods
; ++j
)
1880 _Jv_Method
*imeths
= JvGetFirstMethod (klass
);
1881 for (int i
= 0; i
< JvNumMethods (klass
); ++i
)
1883 _Jv_Method
*self
= &imeths
[i
];
1885 if (! strcmp (self
->name
->chars (), methods
[j
].name
)
1886 && ! strcmp (self
->signature
->chars (), methods
[j
].signature
))
1888 if (! (self
->accflags
& java::lang::reflect::Modifier::NATIVE
))
1891 // Found a match that is native.
1893 nathash_add (&methods
[j
]);
1901 jstring m
= JvNewStringUTF (methods
[j
].name
);
1904 env
->ex
= new java::lang::NoSuchMethodError (m
);
1906 catch (jthrowable t
)
1918 _Jv_JNI_UnregisterNatives (JNIEnv
*, jclass
)
1920 // FIXME -- we could implement this.
1926 // Add a character to the buffer, encoding properly.
1928 add_char (char *buf
, jchar c
, int *here
)
1932 buf
[(*here
)++] = '_';
1933 buf
[(*here
)++] = '1';
1937 buf
[(*here
)++] = '_';
1938 buf
[(*here
)++] = '2';
1942 buf
[(*here
)++] = '_';
1943 buf
[(*here
)++] = '3';
1946 // Also check for `.' here because we might be passed an internal
1947 // qualified class name like `foo.bar'.
1948 else if (c
== '/' || c
== '.')
1949 buf
[(*here
)++] = '_';
1950 else if ((c
>= '0' && c
<= '9')
1951 || (c
>= 'a' && c
<= 'z')
1952 || (c
>= 'A' && c
<= 'Z'))
1953 buf
[(*here
)++] = (char) c
;
1956 // "Unicode" character.
1957 buf
[(*here
)++] = '_';
1958 buf
[(*here
)++] = '0';
1959 for (int i
= 0; i
< 4; ++i
)
1962 buf
[(*here
) + 3 - i
] = (val
> 10) ? ('a' + val
- 10) : ('0' + val
);
1969 // Compute a mangled name for a native function. This computes the
1970 // long name, and also returns an index which indicates where a NUL
1971 // can be placed to create the short name. This function assumes that
1972 // the buffer is large enough for its results.
1974 mangled_name (jclass klass
, _Jv_Utf8Const
*func_name
,
1975 _Jv_Utf8Const
*signature
, char *buf
, int *long_start
)
1977 strcpy (buf
, "Java_");
1980 // Add fully qualified class name.
1981 jchar
*chars
= _Jv_GetStringChars (klass
->getName ());
1982 jint len
= klass
->getName ()->length ();
1983 for (int i
= 0; i
< len
; ++i
)
1984 add_char (buf
, chars
[i
], &here
);
1986 // Don't use add_char because we need a literal `_'.
1989 const unsigned char *fn
= (const unsigned char *) func_name
->chars ();
1990 const unsigned char *limit
= fn
+ func_name
->len ();
1991 for (int i
= 0; ; ++i
)
1993 int ch
= UTF8_GET (fn
, limit
);
1996 add_char (buf
, ch
, &here
);
1999 // This is where the long signature begins.
2004 const unsigned char *sig
= (const unsigned char *) signature
->chars ();
2005 limit
= sig
+ signature
->len ();
2006 JvAssert (sig
[0] == '(');
2010 int ch
= UTF8_GET (sig
, limit
);
2011 if (ch
== ')' || ch
< 0)
2013 add_char (buf
, ch
, &here
);
2019 // Return the current thread's JNIEnv; if one does not exist, create
2020 // it. Also create a new system frame for use. This is `extern "C"'
2021 // because the compiler calls it.
2023 _Jv_GetJNIEnvNewFrame (jclass klass
)
2025 JNIEnv
*env
= _Jv_GetCurrentJNIEnv ();
2028 env
= (JNIEnv
*) _Jv_MallocUnchecked (sizeof (JNIEnv
));
2029 env
->p
= &_Jv_JNIFunctions
;
2032 // We set env->ex below.
2034 _Jv_SetCurrentJNIEnv (env
);
2037 _Jv_JNI_LocalFrame
*frame
2038 = (_Jv_JNI_LocalFrame
*) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame
)
2040 * sizeof (jobject
)));
2042 frame
->marker
= MARK_SYSTEM
;
2043 frame
->size
= FRAME_SIZE
;
2044 frame
->next
= env
->locals
;
2046 for (int i
= 0; i
< frame
->size
; ++i
)
2047 frame
->vec
[i
] = NULL
;
2049 env
->locals
= frame
;
2055 // Return the function which implements a particular JNI method. If
2056 // we can't find the function, we throw the appropriate exception.
2057 // This is `extern "C"' because the compiler uses it.
2059 _Jv_LookupJNIMethod (jclass klass
, _Jv_Utf8Const
*name
,
2060 _Jv_Utf8Const
*signature
, MAYBE_UNUSED
int args_size
)
2062 int name_length
= name
->len();
2063 int sig_length
= signature
->len();
2064 char buf
[10 + 6 * (name_length
+ sig_length
) + 12];
2068 // Synchronize on something convenient. Right now we use the hash.
2069 JvSynchronize
sync (global_ref_table
);
2071 // First see if we have an override in the hash table.
2072 strncpy (buf
, name
->chars (), name_length
);
2073 buf
[name_length
] = '\0';
2074 strncpy (buf
+ name_length
+ 1, signature
->chars (), sig_length
);
2075 buf
[name_length
+ sig_length
+ 1] = '\0';
2076 JNINativeMethod meth
;
2078 meth
.signature
= buf
+ name_length
+ 1;
2079 function
= nathash_find (&meth
);
2080 if (function
!= NULL
)
2083 // If there was no override, then look in the symbol table.
2085 mangled_name (klass
, name
, signature
, buf
+ 1, &long_start
);
2086 char c
= buf
[long_start
+ 1];
2087 buf
[long_start
+ 1] = '\0';
2089 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2091 // On Win32, we use the "stdcall" calling convention (see JNICALL
2094 // For a function named 'fooBar' that takes 'nn' bytes as arguments,
2095 // by default, MinGW GCC exports it as 'fooBar@nn', MSVC exports it
2096 // as '_fooBar@nn' and Borland C exports it as 'fooBar'. We try to
2097 // take care of all these variations here.
2099 char asz_buf
[12]; /* '@' + '2147483647' (32-bit INT_MAX) + '\0' */
2100 char long_nm_sv
[11]; /* Ditto, except for the '\0'. */
2102 if (function
== NULL
)
2104 // We have tried searching for the 'fooBar' form (BCC) - now
2107 // First, save the part of the long name that will be damaged
2108 // by appending '@nn'.
2109 memcpy (long_nm_sv
, (buf
+ long_start
+ 1 + 1), sizeof (long_nm_sv
));
2111 sprintf (asz_buf
, "@%d", args_size
);
2112 strcat (buf
, asz_buf
);
2114 // Search for the '_fooBar@nn' form (MSVC).
2115 function
= _Jv_FindSymbolInExecutable (buf
);
2117 if (function
== NULL
)
2119 // Search for the 'fooBar@nn' form (MinGW GCC).
2120 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2125 if (function
== NULL
)
2127 buf
[long_start
+ 1] = c
;
2129 // Restore the part of the long name that was damaged by
2130 // appending the '@nn'.
2131 memcpy ((buf
+ long_start
+ 1 + 1), long_nm_sv
, sizeof (long_nm_sv
));
2133 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2134 if (function
== NULL
)
2137 strcat (buf
, asz_buf
);
2138 function
= _Jv_FindSymbolInExecutable (buf
);
2139 if (function
== NULL
)
2140 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2142 if (function
== NULL
)
2145 jstring str
= JvNewStringUTF (name
->chars ());
2146 throw new java::lang::UnsatisfiedLinkError (str
);
2156 // This function is the stub which is used to turn an ordinary (CNI)
2157 // method call into a JNI call.
2159 _Jv_JNIMethod::call (ffi_cif
*, void *ret
, ffi_raw
*args
, void *__this
)
2161 _Jv_JNIMethod
* _this
= (_Jv_JNIMethod
*) __this
;
2163 JNIEnv
*env
= _Jv_GetJNIEnvNewFrame (_this
->defining_class
);
2165 // FIXME: we should mark every reference parameter as a local. For
2166 // now we assume a conservative GC, and we assume that the
2167 // references are on the stack somewhere.
2169 // We cache the value that we find, of course, but if we don't find
2170 // a value we don't cache that fact -- we might subsequently load a
2171 // library which finds the function in question.
2173 // Synchronize on a convenient object to ensure sanity in case two
2174 // threads reach this point for the same function at the same
2176 JvSynchronize
sync (global_ref_table
);
2177 if (_this
->function
== NULL
)
2179 int args_size
= sizeof (JNIEnv
*) + _this
->args_raw_size
;
2181 if (_this
->self
->accflags
& java::lang::reflect::Modifier::STATIC
)
2182 args_size
+= sizeof (_this
->defining_class
);
2184 _this
->function
= _Jv_LookupJNIMethod (_this
->defining_class
,
2186 _this
->self
->signature
,
2191 JvAssert (_this
->args_raw_size
% sizeof (ffi_raw
) == 0);
2192 ffi_raw real_args
[2 + _this
->args_raw_size
/ sizeof (ffi_raw
)];
2195 // First argument is always the environment pointer.
2196 real_args
[offset
++].ptr
= env
;
2198 // For a static method, we pass in the Class. For non-static
2199 // methods, the `this' argument is already handled.
2200 if ((_this
->self
->accflags
& java::lang::reflect::Modifier::STATIC
))
2201 real_args
[offset
++].ptr
= _this
->defining_class
;
2203 // In libgcj, the callee synchronizes.
2204 jobject sync
= NULL
;
2205 if ((_this
->self
->accflags
& java::lang::reflect::Modifier::SYNCHRONIZED
))
2207 if ((_this
->self
->accflags
& java::lang::reflect::Modifier::STATIC
))
2208 sync
= _this
->defining_class
;
2210 sync
= (jobject
) args
[0].ptr
;
2211 _Jv_MonitorEnter (sync
);
2214 // Copy over passed-in arguments.
2215 memcpy (&real_args
[offset
], args
, _this
->args_raw_size
);
2217 // The actual call to the JNI function.
2218 #if FFI_NATIVE_RAW_API
2219 ffi_raw_call (&_this
->jni_cif
, (void (*)()) _this
->function
,
2222 ffi_java_raw_call (&_this
->jni_cif
, (void (*)()) _this
->function
,
2227 _Jv_MonitorExit (sync
);
2229 _Jv_JNI_PopSystemFrame (env
);
2232 #endif /* INTERPRETER */
2240 // An internal helper function.
2242 _Jv_JNI_AttachCurrentThread (JavaVM
*, jstring name
, void **penv
,
2243 void *args
, jboolean is_daemon
)
2245 JavaVMAttachArgs
*attach
= reinterpret_cast<JavaVMAttachArgs
*> (args
);
2246 java::lang::ThreadGroup
*group
= NULL
;
2250 // FIXME: do we really want to support 1.1?
2251 if (attach
->version
!= JNI_VERSION_1_4
2252 && attach
->version
!= JNI_VERSION_1_2
2253 && attach
->version
!= JNI_VERSION_1_1
)
2254 return JNI_EVERSION
;
2256 JvAssert (java::lang::ThreadGroup::class$
.isInstance (attach
->group
));
2257 group
= reinterpret_cast<java::lang::ThreadGroup
*> (attach
->group
);
2260 // Attaching an already-attached thread is a no-op.
2261 if (_Jv_GetCurrentJNIEnv () != NULL
)
2264 JNIEnv
*env
= (JNIEnv
*) _Jv_MallocUnchecked (sizeof (JNIEnv
));
2267 env
->p
= &_Jv_JNIFunctions
;
2271 = (_Jv_JNI_LocalFrame
*) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame
)
2273 * sizeof (jobject
)));
2274 if (env
->locals
== NULL
)
2280 env
->locals
->marker
= MARK_SYSTEM
;
2281 env
->locals
->size
= FRAME_SIZE
;
2282 env
->locals
->next
= NULL
;
2284 for (int i
= 0; i
< env
->locals
->size
; ++i
)
2285 env
->locals
->vec
[i
] = NULL
;
2287 *penv
= reinterpret_cast<void *> (env
);
2289 // This thread might already be a Java thread -- this function might
2290 // have been called simply to set the new JNIEnv.
2291 if (_Jv_ThreadCurrent () == NULL
)
2296 _Jv_AttachCurrentThreadAsDaemon (name
, group
);
2298 _Jv_AttachCurrentThread (name
, group
);
2300 catch (jthrowable t
)
2305 _Jv_SetCurrentJNIEnv (env
);
2310 // This is the one actually used by JNI.
2312 _Jv_JNI_AttachCurrentThread (JavaVM
*vm
, void **penv
, void *args
)
2314 return _Jv_JNI_AttachCurrentThread (vm
, NULL
, penv
, args
, false);
2318 _Jv_JNI_AttachCurrentThreadAsDaemon (JavaVM
*vm
, void **penv
,
2321 return _Jv_JNI_AttachCurrentThread (vm
, NULL
, penv
, args
, true);
2325 _Jv_JNI_DestroyJavaVM (JavaVM
*vm
)
2327 JvAssert (the_vm
&& vm
== the_vm
);
2330 if (_Jv_ThreadCurrent () != NULL
)
2336 main_name
= JvNewStringLatin1 ("main");
2338 catch (jthrowable t
)
2343 jint r
= _Jv_JNI_AttachCurrentThread (vm
, main_name
,
2344 reinterpret_cast<void **> (&env
),
2350 env
= _Jv_GetCurrentJNIEnv ();
2354 // Docs say that this always returns an error code.
2359 _Jv_JNI_DetachCurrentThread (JavaVM
*)
2361 jint code
= _Jv_DetachCurrentThread ();
2362 return code
? JNI_EDETACHED
: 0;
2366 _Jv_JNI_GetEnv (JavaVM
*, void **penv
, jint version
)
2368 if (_Jv_ThreadCurrent () == NULL
)
2371 return JNI_EDETACHED
;
2375 // Handle JVMPI requests.
2376 if (version
== JVMPI_VERSION_1
)
2378 *penv
= (void *) &_Jv_JVMPI_Interface
;
2383 // FIXME: do we really want to support 1.1?
2384 if (version
!= JNI_VERSION_1_4
&& version
!= JNI_VERSION_1_2
2385 && version
!= JNI_VERSION_1_1
)
2388 return JNI_EVERSION
;
2391 *penv
= (void *) _Jv_GetCurrentJNIEnv ();
2396 JNI_GetDefaultJavaVMInitArgs (void *args
)
2398 jint version
= * (jint
*) args
;
2399 // Here we only support 1.2 and 1.4.
2400 if (version
!= JNI_VERSION_1_2
&& version
!= JNI_VERSION_1_4
)
2401 return JNI_EVERSION
;
2403 JavaVMInitArgs
*ia
= reinterpret_cast<JavaVMInitArgs
*> (args
);
2404 ia
->version
= JNI_VERSION_1_4
;
2407 ia
->ignoreUnrecognized
= true;
2413 JNI_CreateJavaVM (JavaVM
**vm
, void **penv
, void *args
)
2415 JvAssert (! the_vm
);
2417 _Jv_CreateJavaVM (NULL
);
2419 // FIXME: synchronize
2420 JavaVM
*nvm
= (JavaVM
*) _Jv_MallocUnchecked (sizeof (JavaVM
));
2423 nvm
->functions
= &_Jv_JNI_InvokeFunctions
;
2425 // Parse the arguments.
2428 jint version
= * (jint
*) args
;
2429 // We only support 1.2 and 1.4.
2430 if (version
!= JNI_VERSION_1_2
&& version
!= JNI_VERSION_1_4
)
2431 return JNI_EVERSION
;
2432 JavaVMInitArgs
*ia
= reinterpret_cast<JavaVMInitArgs
*> (args
);
2433 for (int i
= 0; i
< ia
->nOptions
; ++i
)
2435 if (! strcmp (ia
->options
[i
].optionString
, "vfprintf")
2436 || ! strcmp (ia
->options
[i
].optionString
, "exit")
2437 || ! strcmp (ia
->options
[i
].optionString
, "abort"))
2439 // We are required to recognize these, but for now we
2440 // don't handle them in any way. FIXME.
2443 else if (! strncmp (ia
->options
[i
].optionString
,
2444 "-verbose", sizeof ("-verbose") - 1))
2446 // We don't do anything with this option either. We
2447 // might want to make sure the argument is valid, but we
2448 // don't really care all that much for now.
2451 else if (! strncmp (ia
->options
[i
].optionString
, "-D", 2))
2456 else if (ia
->ignoreUnrecognized
)
2458 if (ia
->options
[i
].optionString
[0] == '_'
2459 || ! strncmp (ia
->options
[i
].optionString
, "-X", 2))
2467 jint r
=_Jv_JNI_AttachCurrentThread (nvm
, penv
, NULL
);
2478 JNI_GetCreatedJavaVMs (JavaVM
**vm_buffer
, jsize buf_len
, jsize
*n_vms
)
2483 // We only support a single VM.
2486 vm_buffer
[0] = the_vm
;
2497 // FIXME: synchronize
2500 JavaVM
*nvm
= (JavaVM
*) _Jv_MallocUnchecked (sizeof (JavaVM
));
2502 nvm
->functions
= &_Jv_JNI_InvokeFunctions
;
2506 // If this is a Java thread, we want to make sure it has an
2507 // associated JNIEnv.
2508 if (_Jv_ThreadCurrent () != NULL
)
2511 _Jv_JNI_AttachCurrentThread (the_vm
, &ignore
, NULL
);
2518 _Jv_JNI_GetJavaVM (JNIEnv
*, JavaVM
**vm
)
2520 *vm
= _Jv_GetJavaVM ();
2521 return *vm
== NULL
? JNI_ERR
: JNI_OK
;
2526 #define RESERVED NULL
2528 struct JNINativeInterface _Jv_JNIFunctions
=
2534 _Jv_JNI_GetVersion
, // GetVersion
2535 _Jv_JNI_DefineClass
, // DefineClass
2536 _Jv_JNI_FindClass
, // FindClass
2537 _Jv_JNI_FromReflectedMethod
, // FromReflectedMethod
2538 _Jv_JNI_FromReflectedField
, // FromReflectedField
2539 _Jv_JNI_ToReflectedMethod
, // ToReflectedMethod
2540 _Jv_JNI_GetSuperclass
, // GetSuperclass
2541 _Jv_JNI_IsAssignableFrom
, // IsAssignableFrom
2542 _Jv_JNI_ToReflectedField
, // ToReflectedField
2543 _Jv_JNI_Throw
, // Throw
2544 _Jv_JNI_ThrowNew
, // ThrowNew
2545 _Jv_JNI_ExceptionOccurred
, // ExceptionOccurred
2546 _Jv_JNI_ExceptionDescribe
, // ExceptionDescribe
2547 _Jv_JNI_ExceptionClear
, // ExceptionClear
2548 _Jv_JNI_FatalError
, // FatalError
2550 _Jv_JNI_PushLocalFrame
, // PushLocalFrame
2551 _Jv_JNI_PopLocalFrame
, // PopLocalFrame
2552 _Jv_JNI_NewGlobalRef
, // NewGlobalRef
2553 _Jv_JNI_DeleteGlobalRef
, // DeleteGlobalRef
2554 _Jv_JNI_DeleteLocalRef
, // DeleteLocalRef
2556 _Jv_JNI_IsSameObject
, // IsSameObject
2558 _Jv_JNI_NewLocalRef
, // NewLocalRef
2559 _Jv_JNI_EnsureLocalCapacity
, // EnsureLocalCapacity
2561 _Jv_JNI_AllocObject
, // AllocObject
2562 _Jv_JNI_NewObject
, // NewObject
2563 _Jv_JNI_NewObjectV
, // NewObjectV
2564 _Jv_JNI_NewObjectA
, // NewObjectA
2565 _Jv_JNI_GetObjectClass
, // GetObjectClass
2566 _Jv_JNI_IsInstanceOf
, // IsInstanceOf
2567 _Jv_JNI_GetAnyMethodID
<false>, // GetMethodID
2569 _Jv_JNI_CallMethod
<jobject
>, // CallObjectMethod
2570 _Jv_JNI_CallMethodV
<jobject
>, // CallObjectMethodV
2571 _Jv_JNI_CallMethodA
<jobject
>, // CallObjectMethodA
2572 _Jv_JNI_CallMethod
<jboolean
>, // CallBooleanMethod
2573 _Jv_JNI_CallMethodV
<jboolean
>, // CallBooleanMethodV
2574 _Jv_JNI_CallMethodA
<jboolean
>, // CallBooleanMethodA
2575 _Jv_JNI_CallMethod
<jbyte
>, // CallByteMethod
2576 _Jv_JNI_CallMethodV
<jbyte
>, // CallByteMethodV
2577 _Jv_JNI_CallMethodA
<jbyte
>, // CallByteMethodA
2578 _Jv_JNI_CallMethod
<jchar
>, // CallCharMethod
2579 _Jv_JNI_CallMethodV
<jchar
>, // CallCharMethodV
2580 _Jv_JNI_CallMethodA
<jchar
>, // CallCharMethodA
2581 _Jv_JNI_CallMethod
<jshort
>, // CallShortMethod
2582 _Jv_JNI_CallMethodV
<jshort
>, // CallShortMethodV
2583 _Jv_JNI_CallMethodA
<jshort
>, // CallShortMethodA
2584 _Jv_JNI_CallMethod
<jint
>, // CallIntMethod
2585 _Jv_JNI_CallMethodV
<jint
>, // CallIntMethodV
2586 _Jv_JNI_CallMethodA
<jint
>, // CallIntMethodA
2587 _Jv_JNI_CallMethod
<jlong
>, // CallLongMethod
2588 _Jv_JNI_CallMethodV
<jlong
>, // CallLongMethodV
2589 _Jv_JNI_CallMethodA
<jlong
>, // CallLongMethodA
2590 _Jv_JNI_CallMethod
<jfloat
>, // CallFloatMethod
2591 _Jv_JNI_CallMethodV
<jfloat
>, // CallFloatMethodV
2592 _Jv_JNI_CallMethodA
<jfloat
>, // CallFloatMethodA
2593 _Jv_JNI_CallMethod
<jdouble
>, // CallDoubleMethod
2594 _Jv_JNI_CallMethodV
<jdouble
>, // CallDoubleMethodV
2595 _Jv_JNI_CallMethodA
<jdouble
>, // CallDoubleMethodA
2596 _Jv_JNI_CallVoidMethod
, // CallVoidMethod
2597 _Jv_JNI_CallVoidMethodV
, // CallVoidMethodV
2598 _Jv_JNI_CallVoidMethodA
, // CallVoidMethodA
2600 // Nonvirtual method invocation functions follow.
2601 _Jv_JNI_CallAnyMethod
<jobject
, nonvirtual
>, // CallNonvirtualObjectMethod
2602 _Jv_JNI_CallAnyMethodV
<jobject
, nonvirtual
>, // CallNonvirtualObjectMethodV
2603 _Jv_JNI_CallAnyMethodA
<jobject
, nonvirtual
>, // CallNonvirtualObjectMethodA
2604 _Jv_JNI_CallAnyMethod
<jboolean
, nonvirtual
>, // CallNonvirtualBooleanMethod
2605 _Jv_JNI_CallAnyMethodV
<jboolean
, nonvirtual
>, // CallNonvirtualBooleanMethodV
2606 _Jv_JNI_CallAnyMethodA
<jboolean
, nonvirtual
>, // CallNonvirtualBooleanMethodA
2607 _Jv_JNI_CallAnyMethod
<jbyte
, nonvirtual
>, // CallNonvirtualByteMethod
2608 _Jv_JNI_CallAnyMethodV
<jbyte
, nonvirtual
>, // CallNonvirtualByteMethodV
2609 _Jv_JNI_CallAnyMethodA
<jbyte
, nonvirtual
>, // CallNonvirtualByteMethodA
2610 _Jv_JNI_CallAnyMethod
<jchar
, nonvirtual
>, // CallNonvirtualCharMethod
2611 _Jv_JNI_CallAnyMethodV
<jchar
, nonvirtual
>, // CallNonvirtualCharMethodV
2612 _Jv_JNI_CallAnyMethodA
<jchar
, nonvirtual
>, // CallNonvirtualCharMethodA
2613 _Jv_JNI_CallAnyMethod
<jshort
, nonvirtual
>, // CallNonvirtualShortMethod
2614 _Jv_JNI_CallAnyMethodV
<jshort
, nonvirtual
>, // CallNonvirtualShortMethodV
2615 _Jv_JNI_CallAnyMethodA
<jshort
, nonvirtual
>, // CallNonvirtualShortMethodA
2616 _Jv_JNI_CallAnyMethod
<jint
, nonvirtual
>, // CallNonvirtualIntMethod
2617 _Jv_JNI_CallAnyMethodV
<jint
, nonvirtual
>, // CallNonvirtualIntMethodV
2618 _Jv_JNI_CallAnyMethodA
<jint
, nonvirtual
>, // CallNonvirtualIntMethodA
2619 _Jv_JNI_CallAnyMethod
<jlong
, nonvirtual
>, // CallNonvirtualLongMethod
2620 _Jv_JNI_CallAnyMethodV
<jlong
, nonvirtual
>, // CallNonvirtualLongMethodV
2621 _Jv_JNI_CallAnyMethodA
<jlong
, nonvirtual
>, // CallNonvirtualLongMethodA
2622 _Jv_JNI_CallAnyMethod
<jfloat
, nonvirtual
>, // CallNonvirtualFloatMethod
2623 _Jv_JNI_CallAnyMethodV
<jfloat
, nonvirtual
>, // CallNonvirtualFloatMethodV
2624 _Jv_JNI_CallAnyMethodA
<jfloat
, nonvirtual
>, // CallNonvirtualFloatMethodA
2625 _Jv_JNI_CallAnyMethod
<jdouble
, nonvirtual
>, // CallNonvirtualDoubleMethod
2626 _Jv_JNI_CallAnyMethodV
<jdouble
, nonvirtual
>, // CallNonvirtualDoubleMethodV
2627 _Jv_JNI_CallAnyMethodA
<jdouble
, nonvirtual
>, // CallNonvirtualDoubleMethodA
2628 _Jv_JNI_CallAnyVoidMethod
<nonvirtual
>, // CallNonvirtualVoidMethod
2629 _Jv_JNI_CallAnyVoidMethodV
<nonvirtual
>, // CallNonvirtualVoidMethodV
2630 _Jv_JNI_CallAnyVoidMethodA
<nonvirtual
>, // CallNonvirtualVoidMethodA
2632 _Jv_JNI_GetAnyFieldID
<false>, // GetFieldID
2633 _Jv_JNI_GetField
<jobject
>, // GetObjectField
2634 _Jv_JNI_GetField
<jboolean
>, // GetBooleanField
2635 _Jv_JNI_GetField
<jbyte
>, // GetByteField
2636 _Jv_JNI_GetField
<jchar
>, // GetCharField
2637 _Jv_JNI_GetField
<jshort
>, // GetShortField
2638 _Jv_JNI_GetField
<jint
>, // GetIntField
2639 _Jv_JNI_GetField
<jlong
>, // GetLongField
2640 _Jv_JNI_GetField
<jfloat
>, // GetFloatField
2641 _Jv_JNI_GetField
<jdouble
>, // GetDoubleField
2642 _Jv_JNI_SetField
, // SetObjectField
2643 _Jv_JNI_SetField
, // SetBooleanField
2644 _Jv_JNI_SetField
, // SetByteField
2645 _Jv_JNI_SetField
, // SetCharField
2646 _Jv_JNI_SetField
, // SetShortField
2647 _Jv_JNI_SetField
, // SetIntField
2648 _Jv_JNI_SetField
, // SetLongField
2649 _Jv_JNI_SetField
, // SetFloatField
2650 _Jv_JNI_SetField
, // SetDoubleField
2651 _Jv_JNI_GetAnyMethodID
<true>, // GetStaticMethodID
2653 _Jv_JNI_CallStaticMethod
<jobject
>, // CallStaticObjectMethod
2654 _Jv_JNI_CallStaticMethodV
<jobject
>, // CallStaticObjectMethodV
2655 _Jv_JNI_CallStaticMethodA
<jobject
>, // CallStaticObjectMethodA
2656 _Jv_JNI_CallStaticMethod
<jboolean
>, // CallStaticBooleanMethod
2657 _Jv_JNI_CallStaticMethodV
<jboolean
>, // CallStaticBooleanMethodV
2658 _Jv_JNI_CallStaticMethodA
<jboolean
>, // CallStaticBooleanMethodA
2659 _Jv_JNI_CallStaticMethod
<jbyte
>, // CallStaticByteMethod
2660 _Jv_JNI_CallStaticMethodV
<jbyte
>, // CallStaticByteMethodV
2661 _Jv_JNI_CallStaticMethodA
<jbyte
>, // CallStaticByteMethodA
2662 _Jv_JNI_CallStaticMethod
<jchar
>, // CallStaticCharMethod
2663 _Jv_JNI_CallStaticMethodV
<jchar
>, // CallStaticCharMethodV
2664 _Jv_JNI_CallStaticMethodA
<jchar
>, // CallStaticCharMethodA
2665 _Jv_JNI_CallStaticMethod
<jshort
>, // CallStaticShortMethod
2666 _Jv_JNI_CallStaticMethodV
<jshort
>, // CallStaticShortMethodV
2667 _Jv_JNI_CallStaticMethodA
<jshort
>, // CallStaticShortMethodA
2668 _Jv_JNI_CallStaticMethod
<jint
>, // CallStaticIntMethod
2669 _Jv_JNI_CallStaticMethodV
<jint
>, // CallStaticIntMethodV
2670 _Jv_JNI_CallStaticMethodA
<jint
>, // CallStaticIntMethodA
2671 _Jv_JNI_CallStaticMethod
<jlong
>, // CallStaticLongMethod
2672 _Jv_JNI_CallStaticMethodV
<jlong
>, // CallStaticLongMethodV
2673 _Jv_JNI_CallStaticMethodA
<jlong
>, // CallStaticLongMethodA
2674 _Jv_JNI_CallStaticMethod
<jfloat
>, // CallStaticFloatMethod
2675 _Jv_JNI_CallStaticMethodV
<jfloat
>, // CallStaticFloatMethodV
2676 _Jv_JNI_CallStaticMethodA
<jfloat
>, // CallStaticFloatMethodA
2677 _Jv_JNI_CallStaticMethod
<jdouble
>, // CallStaticDoubleMethod
2678 _Jv_JNI_CallStaticMethodV
<jdouble
>, // CallStaticDoubleMethodV
2679 _Jv_JNI_CallStaticMethodA
<jdouble
>, // CallStaticDoubleMethodA
2680 _Jv_JNI_CallStaticVoidMethod
, // CallStaticVoidMethod
2681 _Jv_JNI_CallStaticVoidMethodV
, // CallStaticVoidMethodV
2682 _Jv_JNI_CallStaticVoidMethodA
, // CallStaticVoidMethodA
2684 _Jv_JNI_GetAnyFieldID
<true>, // GetStaticFieldID
2685 _Jv_JNI_GetStaticField
<jobject
>, // GetStaticObjectField
2686 _Jv_JNI_GetStaticField
<jboolean
>, // GetStaticBooleanField
2687 _Jv_JNI_GetStaticField
<jbyte
>, // GetStaticByteField
2688 _Jv_JNI_GetStaticField
<jchar
>, // GetStaticCharField
2689 _Jv_JNI_GetStaticField
<jshort
>, // GetStaticShortField
2690 _Jv_JNI_GetStaticField
<jint
>, // GetStaticIntField
2691 _Jv_JNI_GetStaticField
<jlong
>, // GetStaticLongField
2692 _Jv_JNI_GetStaticField
<jfloat
>, // GetStaticFloatField
2693 _Jv_JNI_GetStaticField
<jdouble
>, // GetStaticDoubleField
2694 _Jv_JNI_SetStaticField
, // SetStaticObjectField
2695 _Jv_JNI_SetStaticField
, // SetStaticBooleanField
2696 _Jv_JNI_SetStaticField
, // SetStaticByteField
2697 _Jv_JNI_SetStaticField
, // SetStaticCharField
2698 _Jv_JNI_SetStaticField
, // SetStaticShortField
2699 _Jv_JNI_SetStaticField
, // SetStaticIntField
2700 _Jv_JNI_SetStaticField
, // SetStaticLongField
2701 _Jv_JNI_SetStaticField
, // SetStaticFloatField
2702 _Jv_JNI_SetStaticField
, // SetStaticDoubleField
2703 _Jv_JNI_NewString
, // NewString
2704 _Jv_JNI_GetStringLength
, // GetStringLength
2705 _Jv_JNI_GetStringChars
, // GetStringChars
2706 _Jv_JNI_ReleaseStringChars
, // ReleaseStringChars
2707 _Jv_JNI_NewStringUTF
, // NewStringUTF
2708 _Jv_JNI_GetStringUTFLength
, // GetStringUTFLength
2709 _Jv_JNI_GetStringUTFChars
, // GetStringUTFChars
2710 _Jv_JNI_ReleaseStringUTFChars
, // ReleaseStringUTFChars
2711 _Jv_JNI_GetArrayLength
, // GetArrayLength
2712 _Jv_JNI_NewObjectArray
, // NewObjectArray
2713 _Jv_JNI_GetObjectArrayElement
, // GetObjectArrayElement
2714 _Jv_JNI_SetObjectArrayElement
, // SetObjectArrayElement
2715 _Jv_JNI_NewPrimitiveArray
<jboolean
, JvPrimClass (boolean
)>,
2717 _Jv_JNI_NewPrimitiveArray
<jbyte
, JvPrimClass (byte
)>, // NewByteArray
2718 _Jv_JNI_NewPrimitiveArray
<jchar
, JvPrimClass (char)>, // NewCharArray
2719 _Jv_JNI_NewPrimitiveArray
<jshort
, JvPrimClass (short)>, // NewShortArray
2720 _Jv_JNI_NewPrimitiveArray
<jint
, JvPrimClass (int)>, // NewIntArray
2721 _Jv_JNI_NewPrimitiveArray
<jlong
, JvPrimClass (long)>, // NewLongArray
2722 _Jv_JNI_NewPrimitiveArray
<jfloat
, JvPrimClass (float)>, // NewFloatArray
2723 _Jv_JNI_NewPrimitiveArray
<jdouble
, JvPrimClass (double)>, // NewDoubleArray
2724 _Jv_JNI_GetPrimitiveArrayElements
<jboolean
, JvPrimClass (boolean
)>,
2725 // GetBooleanArrayElements
2726 _Jv_JNI_GetPrimitiveArrayElements
<jbyte
, JvPrimClass (byte
)>,
2727 // GetByteArrayElements
2728 _Jv_JNI_GetPrimitiveArrayElements
<jchar
, JvPrimClass (char)>,
2729 // GetCharArrayElements
2730 _Jv_JNI_GetPrimitiveArrayElements
<jshort
, JvPrimClass (short)>,
2731 // GetShortArrayElements
2732 _Jv_JNI_GetPrimitiveArrayElements
<jint
, JvPrimClass (int)>,
2733 // GetIntArrayElements
2734 _Jv_JNI_GetPrimitiveArrayElements
<jlong
, JvPrimClass (long)>,
2735 // GetLongArrayElements
2736 _Jv_JNI_GetPrimitiveArrayElements
<jfloat
, JvPrimClass (float)>,
2737 // GetFloatArrayElements
2738 _Jv_JNI_GetPrimitiveArrayElements
<jdouble
, JvPrimClass (double)>,
2739 // GetDoubleArrayElements
2740 _Jv_JNI_ReleasePrimitiveArrayElements
<jboolean
, JvPrimClass (boolean
)>,
2741 // ReleaseBooleanArrayElements
2742 _Jv_JNI_ReleasePrimitiveArrayElements
<jbyte
, JvPrimClass (byte
)>,
2743 // ReleaseByteArrayElements
2744 _Jv_JNI_ReleasePrimitiveArrayElements
<jchar
, JvPrimClass (char)>,
2745 // ReleaseCharArrayElements
2746 _Jv_JNI_ReleasePrimitiveArrayElements
<jshort
, JvPrimClass (short)>,
2747 // ReleaseShortArrayElements
2748 _Jv_JNI_ReleasePrimitiveArrayElements
<jint
, JvPrimClass (int)>,
2749 // ReleaseIntArrayElements
2750 _Jv_JNI_ReleasePrimitiveArrayElements
<jlong
, JvPrimClass (long)>,
2751 // ReleaseLongArrayElements
2752 _Jv_JNI_ReleasePrimitiveArrayElements
<jfloat
, JvPrimClass (float)>,
2753 // ReleaseFloatArrayElements
2754 _Jv_JNI_ReleasePrimitiveArrayElements
<jdouble
, JvPrimClass (double)>,
2755 // ReleaseDoubleArrayElements
2756 _Jv_JNI_GetPrimitiveArrayRegion
<jboolean
, JvPrimClass (boolean
)>,
2757 // GetBooleanArrayRegion
2758 _Jv_JNI_GetPrimitiveArrayRegion
<jbyte
, JvPrimClass (byte
)>,
2759 // GetByteArrayRegion
2760 _Jv_JNI_GetPrimitiveArrayRegion
<jchar
, JvPrimClass (char)>,
2761 // GetCharArrayRegion
2762 _Jv_JNI_GetPrimitiveArrayRegion
<jshort
, JvPrimClass (short)>,
2763 // GetShortArrayRegion
2764 _Jv_JNI_GetPrimitiveArrayRegion
<jint
, JvPrimClass (int)>,
2765 // GetIntArrayRegion
2766 _Jv_JNI_GetPrimitiveArrayRegion
<jlong
, JvPrimClass (long)>,
2767 // GetLongArrayRegion
2768 _Jv_JNI_GetPrimitiveArrayRegion
<jfloat
, JvPrimClass (float)>,
2769 // GetFloatArrayRegion
2770 _Jv_JNI_GetPrimitiveArrayRegion
<jdouble
, JvPrimClass (double)>,
2771 // GetDoubleArrayRegion
2772 _Jv_JNI_SetPrimitiveArrayRegion
<jboolean
, JvPrimClass (boolean
)>,
2773 // SetBooleanArrayRegion
2774 _Jv_JNI_SetPrimitiveArrayRegion
<jbyte
, JvPrimClass (byte
)>,
2775 // SetByteArrayRegion
2776 _Jv_JNI_SetPrimitiveArrayRegion
<jchar
, JvPrimClass (char)>,
2777 // SetCharArrayRegion
2778 _Jv_JNI_SetPrimitiveArrayRegion
<jshort
, JvPrimClass (short)>,
2779 // SetShortArrayRegion
2780 _Jv_JNI_SetPrimitiveArrayRegion
<jint
, JvPrimClass (int)>,
2781 // SetIntArrayRegion
2782 _Jv_JNI_SetPrimitiveArrayRegion
<jlong
, JvPrimClass (long)>,
2783 // SetLongArrayRegion
2784 _Jv_JNI_SetPrimitiveArrayRegion
<jfloat
, JvPrimClass (float)>,
2785 // SetFloatArrayRegion
2786 _Jv_JNI_SetPrimitiveArrayRegion
<jdouble
, JvPrimClass (double)>,
2787 // SetDoubleArrayRegion
2788 _Jv_JNI_RegisterNatives
, // RegisterNatives
2789 _Jv_JNI_UnregisterNatives
, // UnregisterNatives
2790 _Jv_JNI_MonitorEnter
, // MonitorEnter
2791 _Jv_JNI_MonitorExit
, // MonitorExit
2792 _Jv_JNI_GetJavaVM
, // GetJavaVM
2794 _Jv_JNI_GetStringRegion
, // GetStringRegion
2795 _Jv_JNI_GetStringUTFRegion
, // GetStringUTFRegion
2796 _Jv_JNI_GetPrimitiveArrayCritical
, // GetPrimitiveArrayCritical
2797 _Jv_JNI_ReleasePrimitiveArrayCritical
, // ReleasePrimitiveArrayCritical
2798 _Jv_JNI_GetStringCritical
, // GetStringCritical
2799 _Jv_JNI_ReleaseStringCritical
, // ReleaseStringCritical
2801 _Jv_JNI_NewWeakGlobalRef
, // NewWeakGlobalRef
2802 _Jv_JNI_DeleteWeakGlobalRef
, // DeleteWeakGlobalRef
2804 _Jv_JNI_ExceptionCheck
, // ExceptionCheck
2806 _Jv_JNI_NewDirectByteBuffer
, // NewDirectByteBuffer
2807 _Jv_JNI_GetDirectBufferAddress
, // GetDirectBufferAddress
2808 _Jv_JNI_GetDirectBufferCapacity
// GetDirectBufferCapacity
2811 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions
=
2817 _Jv_JNI_DestroyJavaVM
,
2818 _Jv_JNI_AttachCurrentThread
,
2819 _Jv_JNI_DetachCurrentThread
,
2821 _Jv_JNI_AttachCurrentThreadAsDaemon